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Effect of metal stress on life history divergence and quantitative genetic architecture in a wolf spider

Frederik Hendrickx, Jean-Pierre Maelfait UGent and Luc Lens UGent (2008) JOURNAL OF EVOLUTIONARY BIOLOGY. 21(1). p.183-193
abstract
Effects and consequences of stress exposure on life history strategies and quantitative genetic variation in wild populations remain poorly understood. We here study whether long-term exposure to heavy metal pollution may result in alternative life history strategies and alter quantitative genetic properties in natural populations of the wolf spider Pirata piraticus. Offspring originating from a reference and a metal contaminated population and their reciprocal hybrid cross were bred in a half-sib mating scheme and subsequently reared in cadmium contaminated vs. clean environment. Results from this experiment provided evidence for a genetically based reduced growth rate and increased egg size in the contaminated population. Growth rate reduction in response to cadmium contamination was only observed for the reference population. Animal model analysis revealed that heritability for growth rate was large for the reference population under reference conditions, but much lower under metal stressed conditions, caused by a strong decrease in additive genetic variance. Heritability for growth of the metal contaminated population was very low, even under reference conditions. Initial size of the offspring was primarily determined by maternal effects, whereas egg size produced by the offspring was determined by both sire and dam effects, indicating that egg size determination is under control of the female genotype. In conclusion, these results show that metal stress can not only affect life history variation in natural populations, but also decreases the expression as well as the of the amount of genetic variation for particular life history traits.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
Bayesian statistics, animal model, ecological divergence, egg size, heavy metal, stress resistance, trade-off, DIFFERENT ENVIRONMENTAL-CONDITIONS, PHENOTYPIC PLASTICITY, DROSOPHILA-MELANOGASTER, EGG SIZE, TERRESTRIAL INVERTEBRATES, EVOLUTIONARY ECOLOGY, NATURAL-POPULATIONS, CADMIUM EXCRETION, WILD POPULATIONS, LOCAL ADAPTATION
journal title
JOURNAL OF EVOLUTIONARY BIOLOGY
J. Evol. Biol.
volume
21
issue
1
pages
183-193 pages
Web of Science type
Article
Web of Science id
000251765600018
JCR category
ECOLOGY
JCR impact factor
3.471 (2008)
JCR rank
27/124 (2008)
JCR quartile
1 (2008)
ISSN
1010-061X
DOI
10.1111/j.1420-9101.2007.01452.x
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
410508
handle
http://hdl.handle.net/1854/LU-410508
date created
2008-05-17 08:59:00
date last changed
2009-07-30 09:24:34
@article{410508,
  abstract     = {Effects and consequences of stress exposure on life history strategies and quantitative genetic variation in wild populations remain poorly understood. We here study whether long-term exposure to heavy metal pollution may result in alternative life history strategies and alter quantitative genetic properties in natural populations of the wolf spider Pirata piraticus. Offspring originating from a reference and a metal contaminated population and their reciprocal hybrid cross were bred in a half-sib mating scheme and subsequently reared in cadmium contaminated vs. clean environment. Results from this experiment provided evidence for a genetically based reduced growth rate and increased egg size in the contaminated population. Growth rate reduction in response to cadmium contamination was only observed for the reference population. Animal model analysis revealed that heritability for growth rate was large for the reference population under reference conditions, but much lower under metal stressed conditions, caused by a strong decrease in additive genetic variance. Heritability for growth of the metal contaminated population was very low, even under reference conditions. Initial size of the offspring was primarily determined by maternal effects, whereas egg size produced by the offspring was determined by both sire and dam effects, indicating that egg size determination is under control of the female genotype. In conclusion, these results show that metal stress can not only affect life history variation in natural populations, but also decreases the expression as well as the of the amount of genetic variation for particular life history traits.},
  author       = {Hendrickx, Frederik and Maelfait, Jean-Pierre and Lens, Luc},
  issn         = {1010-061X},
  journal      = {JOURNAL OF EVOLUTIONARY BIOLOGY},
  keyword      = {Bayesian statistics,animal model,ecological divergence,egg size,heavy metal,stress resistance,trade-off,DIFFERENT ENVIRONMENTAL-CONDITIONS,PHENOTYPIC PLASTICITY,DROSOPHILA-MELANOGASTER,EGG SIZE,TERRESTRIAL INVERTEBRATES,EVOLUTIONARY ECOLOGY,NATURAL-POPULATIONS,CADMIUM EXCRETION,WILD POPULATIONS,LOCAL ADAPTATION},
  language     = {eng},
  number       = {1},
  pages        = {183--193},
  title        = {Effect of metal stress on life history divergence and quantitative genetic architecture in a wolf spider},
  url          = {http://dx.doi.org/10.1111/j.1420-9101.2007.01452.x},
  volume       = {21},
  year         = {2008},
}

Chicago
Hendrickx, Frederik, Jean-Pierre Maelfait, and Luc Lens. 2008. “Effect of Metal Stress on Life History Divergence and Quantitative Genetic Architecture in a Wolf Spider.” Journal of Evolutionary Biology 21 (1): 183–193.
APA
Hendrickx, F., Maelfait, J.-P., & Lens, L. (2008). Effect of metal stress on life history divergence and quantitative genetic architecture in a wolf spider. JOURNAL OF EVOLUTIONARY BIOLOGY, 21(1), 183–193.
Vancouver
1.
Hendrickx F, Maelfait J-P, Lens L. Effect of metal stress on life history divergence and quantitative genetic architecture in a wolf spider. JOURNAL OF EVOLUTIONARY BIOLOGY. 2008;21(1):183–93.
MLA
Hendrickx, Frederik, Jean-Pierre Maelfait, and Luc Lens. “Effect of Metal Stress on Life History Divergence and Quantitative Genetic Architecture in a Wolf Spider.” JOURNAL OF EVOLUTIONARY BIOLOGY 21.1 (2008): 183–193. Print.